can cell phones cause cancer? This article is about if cell phones can cause brain cancer and slows brain metabolism. The scientists had volunteers to test out there theories. The volunteers held a flip phone to their ear for 50 minutes with a signal and then held the phone to their ear for 50 minutes without signal. "metabolism in the region closest to the antenna was significantly higher [about 7 percent] for on than off conditions." (nora Volcow) That region includes the orbitofrontal cortex
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OKPARA UNIVERSITY OF AGRICULTURE UMUDIKE (MOUAU) COLLEGE OF CROP AND SOIL SCIENCE (CCSS) DEPARTMENT OF AGRONOMY A TERM PAPER WRITTEN IN PARTIAL FULFILLMENT OF THE COURSE CGB 514 (CYTOGENETICS) TOPIC: PLANT CELL ORGANELLES AND THEIR FUNCTIONS‚ THE DIFFERENCES BETWEEN THE PLANT AND ANIMAL CELL BY ONUMAEGBU BRIGHT C MOUAU/08/11351 LECTURE: DR J N EKA
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Cancer and cell cycle control: The cell cycle‚ or cell-division cycle‚ is the series of events that takes place in a cell leading to its division and duplication (replication). In cells without a nucleus (prokaryotic)‚ the cell cycle occurs via a process termed binary fission. In cells with a nucleus (eukaryotes)‚ the cell cycle can be divided in two brief periods: interphase—during which the cell grows‚ accumulating nutrients needed for mitosis and duplicating its DNA—and the mitosis (M) phase
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There are over 100 different types of cancer. Each type of cancer can have different symptoms‚ diagnostic tests and treatment options. As a result‚ there are many terminologies and phrases that are used to describe the type‚ symptoms and diagnosis of cancer‚ and treatment methods. It is often very confusing as well as frustrating for the readers if too many medical jargons or terminologies are used in describing this condition. It is difficult for readers to understand the context of the topic or
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The difference between embryonic stem cells and adult stem cells is that the embryonic stem cells are pluripotent stem cells that are from the inner cell mass of the blastocyst. Adult stem cells are undifferentiated cells and are found throughout the body. The adult stem cells are multiplied by cell division to replenish dying cells and revitalize damaged tissues. Totipotent cells are stem cells that are capable of giving rise to any type of cell or a full embryo. A pluripotent cell is a stem cell
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Cells‚ Cell Division‚ and Cell Specialization Fundamentally Different Types of Cell Prokaryotic Cell- single celled: only DNA+ structure (“before nucleus”) E.g. zygote-complete DNA Eukaryotic Cell-multi-celled (“after nucleus”) Prokaryotes Eukaryotes DNA In “nucleoid” region Within membrane-bound nucleus Chromosomes Single‚ circular Multiple‚ linear Organelles None Membrane-bound organelles Size Usually smaller Usually larger- 50 times Organization Usually single-celled Often multicellular
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Cancer is the uncontrolled growth of abnormal cells in the body. When cells in part of the body become overactive‚ cancer begins. Many kinds of cancer start because of the out of control growth of abnormal cells. How can you prevent cancer? Research shows that there are ways to prevent cancer. Avoiding smoking cigarettes and exposure to smoke will decrease the chances of getting lung cancer. Fruits‚ vegetables and a well balanced diet are important to keep healthy and will help repair damaged
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DETAILED DIFFERENCES BETWEEN EUKARYOTIC AND PROKARYOTIC CELLS Cells are divided into two categories namely the Prokaryotes and Eukaryotes. These two have varying differences between them. Speaking in simple cell biology words‚ prokaryotes are primitive‚ simple organisms that lack membranous cell organelles. The opposite of this are eukaryotes‚ which are advanced and complex organisms having membrane bound cell organelles. Seemingly simple in structure and markedly different from eukaryote and
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to put cancers in the right perspective. By way of definition‚ a cancer is a malignant tumor or swelling composed of abnormal cells capable of undergoing uncontrolled proliferation. Many erroneously hold the view that every swelling or lump is cancer. However‚ this is not so. Unlike benign swellings‚ cancerous cells generally have the tendency to invade surrounding tissues and sometimes metastasize (break off and spread) to distant body tissues via the bloodstream or lymphatic system. Cancers result
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all accounts‚ modified how we interact with others; but at what cost? Are there health issues associated with this technology? More explicitly can cell phones cause cancer? This question is the basis of this review. The researcher has compiled articles that cover this topic from diverse scholarly sources‚ and diverse countries. It is undeniable that cellular technology has become main stream. "It was estimated that there were 92 million cell phone users in the US‚ a number growing by one million every
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